Why You Shouldn't Crush an Aluminum Can Before Recycling It

iStock.com/FotografiaBasica
iStock.com/FotografiaBasica

Participating in your local recycling program is a great first step toward reducing waste, but tossing your old containers in the right bin is just one part of the process. To make sure your recyclable goods end up where they're supposed to be, you have to treat them right. That means resisting the urge to crush your aluminum cans, according to Lifehacker.

Stomping on an empty can may seem like a logical move: A crushed can takes up less space, which should make it easier to store and recycle. But recycling centers actually have a harder time processing cans that have been flattened.

Many recycling plants sort recyclable materials by shape. Small items tend to be marked as waste and sent to the landfill (which is why it's better to leave caps on plastic bottles when you recycle them). Flat items are usually sorted with the paper and cardboard, so when a can is crushed, it may be misidentified and end up contaminating a batch of paper items.

If you want your aluminum cans to be sent to the right place, leave them in their original 3D shape when you dispose of them. That way your local recycling center will have an easier time identifying the material. But if crushing cans has become a habit, you may be able to keep doing it without creating more waste. Some municipalities use multi-stream recycling systems which are able to recycle your cans properly no matter what shape they're in. So, if you use two separate bins for your recycling and live in a multi-stream recycling area, you can probably continue crushing cans to your heart's content.

[h/t Lifehacker]

The Tree That Inspired Dr. Seuss's The Lorax Has Fallen Over

Rhododendrites, Wikimedia Commons // CC BY-SA 4.0
Rhododendrites, Wikimedia Commons // CC BY-SA 4.0

The Truffula trees at the center of The Lorax may have been a product of Dr. Seuss's imagination, but it's believed they were inspired by a real-life tree in La Jolla, California. Nearly 50 years after the environmental parable was published, Smithsonian reports that the iconic Monterey cypress has fallen.

The tree had grown for 80 to 100 years in what is today Ellen Browning Scripps Park in Southern California. It was clearly visible from the observation tower where Theodor Geisel, a.k.a. Dr. Seuss, lived in La Jolla following World War II.

While the children's book author and illustrator never stated that the tree inspired his work, locals started referring to it as "The Lorax Tree." The resemblance it bears to Seuss's Truffula is undeniable: Both have skinny trunks with whimsical curves and thick, fluffy canopies of foliage concentrated at the top.

In The Lorax, the Truffula trees are threatened by the Once-ler, who wants to chop them down and turn them into garments called Thneeds. The title character "speaks for the trees" and conveys the book's environmentalist message.

Unlike the Truffula, La Jolla's Monterey cypress appeared to be in no danger until it recently toppled over. Arborists aren't sure what caused the collapse, as they hadn't noticed any prior health issues with the tree except for some termites. The past year's uncharacteristically wet winter and the effect it had on the surrounding soil may have played a role, so experts are looking into that possibility.

Most of the tree has been removed from the area, and the city plans to plant another tree in its place. There are also plans to salvage and repurpose the trunk from the fallen tree, though they haven't been made official.

[h/t Smithsonian]

Tourists Are Picking Apart Britain's Oldest Tree

Paul Hermans, Wikimedia Commons // CC BY-SA 3.0

The Fortingall Yew in the Fortingall churchyard in Perthshire, Scotland has seen a lot. Since it started growing at least 2000 years ago, it's been present for the Roman settlement of Scotland, the shift from paganism to Christianity, and the country's induction into the United Kingdom. But after standing for millennia, the ancient tree is facing its greatest threat yet. Tourists are removing twigs and branches from the tree to take home as souvenirs, and the tree is under so much stress that it's spontaneously changing sexes, Atlas Obscura reports.

Because of how the tree grows, it's hard to date the Fortingall Yew precisely. It comprises several separate trunks that have hollowed out over the years, making it easier for the tree to support itself in its old age. Based on historical measurements and 19th-century ring counts, the yew has been around for at least two millennia, but it could date back as far as 5000 years. That makes it the oldest tree in Britain and one of the oldest living things in Europe.

That impressive title means the tree gets a lot of visitors, not all of whom are concerned with extending its lifespan even longer. A stone and iron wall built in the Victorian era encloses the tree, but that hasn't stopped people from climbing over it to break off pieces or leave behind keepsakes like beads and ribbons.

As the abuse adds up, the tree has responded in concerning ways. It sprouted red berries this spring, a sign that the tree is transitioning to a different sex for the first time in its life. Yew trees are either male or female, and sex changes among the species are incredibly rare and misunderstood. Some botanists believe it's a reaction to stress. The change may be a survival mechanism intended to increase the specimen's chances of reproducing.

Scientists aren't sure why this particular yew, which was formerly male, sprouted berries on its upper branches, an exclusively female characteristic, but they've collected the berries to study them. The seeds from the berries will be preserved as part of a project to protect the genetic diversity of yew trees across the globe.

In the mean time, caretakers of the Fortingall Yew are imploring visitors to be respectful of the tree and keep their hands to themselves.

[h/t Atlas Obscura]

SECTIONS

arrow
LIVE SMARTER